REPORTER JACKIE SCHAEFER WENT BACK TO THAT COMMUNITY STILL REELING FROM THIS INCREDIBLE LOSS. Reporter: GRIEF COUNSELORS ARE BACK IN THE SCHOOL TODAY HERE AT WASHINGTON PARK INTERMEDIATE. THE SUPERINTENDENT TELLS ME SHE BELIEVES TODAY WILL BE THE TOUGHER DAY FOR STUDENTS BECAUSE THE DETAILS OF WHAT HAPPENED TO LITTLE TANIYAH THOMAS ARE FINALLY SETTING IN. AS THE BUSES ROLLED IN THIS MORNING, STUDENTS AND PARENTS HAD HEAVY HEARTS, MOURNING THE LOSS OF 10-YEAR-OLD TANIYAH THOMAS. I GREW UP WITH HER MOM AND DAD SO WE'VE KIND OF ALWAYS KNOWN EACH OTHER. Reporter: MICHELLE PATTERSON SAYS IT'S NEWS SHE STILL CAN'T BELIEVE. HER SON RODE THE BUS WITH THOMAS. HE JUST SAID, YOU KNOW, HE SAT WITH HER THE OTHER DAY ON THE BUS AND HE SAID IT'S SAD BECAUSE SHE DIDN'T BOTHER ANYBODY. Reporter: TRYING TO EXPLAIN THIS LOSS TO HER 11-YEAR-OLD SON WAS A TOUGH CONVERSATION. WHEN WE WOKE UP YESTERDAY MORNING I TOLD HIM THERE WAS AN ACCIDENT AND THERE WAS A LITTLE GIRL THAT RODE HIS BUS, AND I TOLD HIM IF HE HAS ANY PROBLEMS, I CALLED HIS TEACHER AND YOU KNOW, THEY HAVE COUNSELORS HERE FOR THE KIDS TO TALK TO. Reporter: AS COUNSELORS TRY TO EASE THE PAIN FOR STUDENTS, WASHINGTON POLICE SAY THEY ARE WORKING WITH WHAT THEY CALL CREDIBLE INFORMATION, BUT STILL HAVE NO SUSPECTS. THEY NOW KNOW THOMAS WAS SHOT TWICE IN THE GUNFIRE AT HER WEST CHESTNUT STREET APARTMENT AND THEY BELIEVE SHE WOULD BE ALIVE TODAY HAD SHE JUST STAYED IN BED. WHILE POLICE SAY THEY CAN'T REVEAL A CLEAR MOTIVE, WE DISCOVERED THOMAS' MOTHER IS FACING DRUG CHARGES. SHE IS DUE IN COURT FOR THAT IN APRIL. POLICE SAY THEY ARE ALSO LOOKING INTO THE CRIMINAL HISTORY OF HER BOYFRIEND. MEANTIME, A MEMORIAL GROWS OUTSIDE OF THEIR APARTMENT AS FRIENDS AND FAMILY CALL FOR JUSTICE. HOPEFULLY WE CAN FIND OUT WHO DID IT. THAT'S THE BEST PART. JUST PRAY FOR EVERYBODY THAT WAS INVOLVED. Reporter: POLICE ARE URGING ANYONE WITH ANY INFORMATION TO